Above is a very preliminary plan for a dog park in the recently saved Constitution Green space in Thornton Park [GMap]. We must stress that the plan is in the very early stages and nothing is set in stone, in fact a lot of it will change before the final plan is approved.
It looks as though the focus is on building a smaller dog run in the Northeastern corner of the lot and leaving the rest open for regular public use.
The City saved the lot from development by purchasing it for under $6M. More on that HERE.